Oil and gas mixing funnel



FIG. 1 is a perspective view of an oil and gas mixing funnel showing my new design;

FIG. 2 is a left side elevational view;

FIG. 3 is a top plan view;

FIG. 4 is a bottom plan view;

FIG. 5 is a front elevational view; and

FIG. 6 is a rear elevational view thereof.

FIG. 1 has been drawn on a reduced scale with respect to FIGS. 2-6. 

The ornamental design for an oil and gas mixing funnel, as shown and described. 